transaction abort!rollback completed
abort: unknown encoding: x-windows-949, please check your locale settings. ...

OS - Microsoft Windows 7 and XP, Korean
Eclipse - 3.5.1 (default encoding for windows version = MS949)
MercurialEclipse - 1.6.0 (also 1.7.0)

* Problem

Cannot commit, push, synchronize, ... after error message "transaction abort!rollback completed"

* Cause

MercurilEclipse calls 'hg.exe' with arguments like this ...

hg.exe --config ui.fallbackencoding=windows-1251 --encoding x-windows-949 ...

** Cause

in 'src/com/vectrace/MercurialEclipse/team/MercurialTeamProvider.java'
protected IStatus run(IProgressMonitor monitor) {
 if (HgDebugInstallClient.hgSupportsEncoding(defaultCharset)) {
  hgRoot.setEncoding(''Charset.forName(defaultCharset)'');
 }
 monitor.done();
 return Status.OK_STATUS;
} 

in 'src/com/vectrace/MercurialEclipse/commands/AbstractShellCommand.java'
private Charset setupEncoding(List<String> cmd) {
 if(hgRoot == null){
  return null;
 }
 Charset charset = hgRoot.getEncoding();
 // Enforce strict command line encoding
 cmd.add(1, ''charset.name()'');
 cmd.add(1, "--encoding");
 // Enforce fallback encoding for UI (command output)
 // Note: base encoding is UTF-8 for mercurial, fallback is only take into account
 // if actual platfrom don't support it.
 cmd.add(1, "ui.fallbackencoding=" + hgRoot.getFallbackencoding().name()); //$NON-NLS-1$
 cmd.add(1, "--config"); //$NON-NLS-1$
 return charset;
}